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CN102386638A - Chargeable battery charging/discharging device and driving method thereof - Google Patents

Chargeable battery charging/discharging device and driving method thereof Download PDF

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Publication number
CN102386638A
CN102386638A CN2010105522387A CN201010552238A CN102386638A CN 102386638 A CN102386638 A CN 102386638A CN 2010105522387 A CN2010105522387 A CN 2010105522387A CN 201010552238 A CN201010552238 A CN 201010552238A CN 102386638 A CN102386638 A CN 102386638A
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China
Prior art keywords
charging
charge
discharge
discharging
current
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CN2010105522387A
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Chinese (zh)
Inventor
表永学
徐尚铁
白承赫
赛尔吉·瓦西凯夫
朱利亚
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Samsung SDI Co Ltd
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Samsung SDI Co Ltd
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Publication of CN102386638A publication Critical patent/CN102386638A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明公开了一种可充电电池的充放电设备及其驱动方法，所述充放电设备包括：充放电驱动器，产生用于可充电电池的充放电的充放电电流；磁传感器，测量由在可充电电池和充放电驱动器之间流动的充放电电流产生的磁场来测量充放电电流量，并产生指示测量出的充放电电流量的反馈信号；控制单元，接收反馈信号并将测量出的充放电电流量与充放电电流量的预定值进行比较来控制充放电驱动器。因而在可充电电池的充放电过程中可以更精确地控制充放电电流量。

Figure 201010552238

The invention discloses a rechargeable battery charging and discharging device and a driving method thereof. The charging and discharging device includes: a charging and discharging driver for generating a charging and discharging current for charging and discharging a rechargeable battery; a magnetic sensor for measuring The magnetic field generated by the charge and discharge current flowing between the rechargeable battery and the charge and discharge driver measures the charge and discharge current, and generates a feedback signal indicating the measured charge and discharge current; the control unit receives the feedback signal and converts the measured charge and discharge The current amount is compared with a predetermined value of the charge and discharge current amount to control the charge and discharge driver. Therefore, the charge and discharge current can be more precisely controlled during the charge and discharge process of the rechargeable battery.

Figure 201010552238

Description

The charging/discharging apparatus of rechargeable battery and driving method thereof
Technical field
The present invention relates to a kind of charging/discharging apparatus and driving method thereof of rechargeable battery.More particularly, the present invention relates to a kind of charging/discharging apparatus and driving method thereof of charging and discharging currents amount of sensing rechargeable battery.
Background technology
Recently, increased use such as mancarried devices such as mobile phone, PDA (personal digital assistant), notebook, laptop computers.Through using rechargeable battery to come to be the mancarried device power supply, rechargeable battery can be discharged and recharged aspect operating characteristic times without number.The charging capacity that is used for the rechargeable battery of mancarried device must increase, and reduces its size and weight.
In the manufacturing process of rechargeable battery, carry out the technology that discharges and recharges of the charging capacity be used to increase rechargeable battery.The technology that discharges and recharges of rechargeable battery is used for through times without number rechargeable battery being discharged and recharged the charging capacity that increases rechargeable battery.Discharging and recharging in the technology of rechargeable battery, it is very important that electric current accurately and is is continuously discharged and recharged.For this reason, discharging and recharging in the technology of rechargeable battery, accurately sensing and the charging and discharging currents amount of controlling rechargeable battery also are very important.
The charging/discharging apparatus of common rechargeable battery is the series combination shunt resistor between the charge-discharge circuit of rechargeable battery and rechargeable battery; Measuring the charging and discharging currents amount, and the voltage difference between the shunt resistor two ends that change according to the magnitude of current of measuring.The shunt resistor series combination between charge-discharge circuit and rechargeable battery, thereby if owing to shunt resistor produces voltage drop, then can produce the loss of charging/discharging apparatus.The temperature of shunt resistor changes because of the loss of shunt resistor, thereby the resistance of shunt resistor changes.Therefore, the magnitude of voltage of in shunt resistor, measuring changes according to the measure error of the charging and discharging currents amount of temperature and the actual thus rechargeable battery that produces.That is, the certainty of measurement of the charging and discharging currents amount of very important rechargeable battery can deterioration in discharging and recharging technology.
For such problem is minimized, need have the shunt resistor little, yet that these shunt resistors have is expensive, so the cost of charging/discharging apparatus increases according to the resistance variations of temperature.In addition; Can heating panel or fan be invested shunt resistor individually, so that the variations in temperature of shunt resistance minimizes, the magnitude of voltage that perhaps can come compensated measurement to go out according to the temperature of shunt resistor; Yet, do not solve problem at all based on the variations in temperature of shunt resistor.Specifically, under the situation of the high-power charging/discharging apparatus that high capacity rechargeable battery is discharged and recharged, the charging and discharging currents amount is very big, makes because the serious problems of shunt resistor can further increase.
The disclosed above-mentioned information of this background technology part only is in order to increase the understanding to background technology of the present invention, and therefore, it can be included in the information that does not form those of ordinary skills' known systems in this country.
Summary of the invention
The invention provides a kind of charging/discharging apparatus and driving method thereof of rechargeable battery of certainty of measurement of the charging and discharging currents amount that can improve rechargeable battery.
The rechargeable battery charging/discharging apparatus comprises according to an exemplary embodiment of the present invention: discharge and recharge driver, produce the charging and discharging currents that discharges and recharges that is used for rechargeable battery; Magnetic Sensor is measured by at rechargeable battery with discharge and recharge the magnetic field that the charging and discharging currents that flows between the driver produces and measure the charging and discharging currents amount, and produces the feedback signal of the charging and discharging currents amount that indication measurement goes out; Control unit, receiving feedback signals also compares the predetermined value of charging and discharging currents amount of measuring and charging and discharging currents amount to control and discharges and recharges driver.
Control unit can comprise: A/D converter converts feedback signal into digital signal; Memory, the predetermined value of storage charging and discharging currents amount; Computation processor, the predetermined value of comparative figures signal and charging and discharging currents amount is used for being controlled at the control signal that discharges and recharges that discharges and recharges charging and discharging currents amount that driver produces with generation, and will discharge and recharge control signal and be transferred to and discharge and recharge driver.
Discharging and recharging driver can comprise: change-over circuit produces the charging and discharging currents that discharges and recharges that is used for rechargeable battery; Drive circuit is controlled at the magnitude of current that produces in the change-over circuit according to discharging and recharging control signal.
Charging/discharging apparatus also can comprise power subsystem, receives AC voltage from the outside and said AC voltage commutation is the dc voltage during discharging and recharging driver.
Power subsystem can keep dc voltage and change according to the charged state of rechargeable battery being fed to the magnitude of current that discharges and recharges driver consistently.
Change-over circuit can be the bi-directional DC-DC converter that between the dc voltage of the dc voltage of power subsystem and generation charging and discharging currents, carries out voltage transitions.
Charging/discharging apparatus also can comprise: fixture unit discharges and recharges driver and is attached to rechargeable battery with bearing to charge and discharge to be wired to through just charging and discharging electric wire.
Magnetic Sensor can with just charge and discharge electric wire and separate predetermined distance with negative of charging and discharging in the electric wire.
Feedback signal can be the electric current according to the size and Orientation generation in magnetic field.Feedback signal is to be big or small identical electric current big or small and charging and discharging currents.
Magnetic Sensor can be at least a in Hall element, magneto-resistive effect element and the Josephson device.
The method that is used to drive the charging/discharging apparatus of rechargeable battery according to an exemplary embodiment of the present invention may further comprise the steps: measure the charging and discharging currents amount that rechargeable battery is measured in magnetic field that the charging and discharging currents to the rechargeable battery charge or discharge produces; Charging and discharging currents amount and the predetermined value measured are compared; Control the charging and discharging currents amount of rechargeable battery according to the comparative result between charging and discharging currents amount of measuring and the predetermined value.
This method also can comprise the step that produces the feedback signal corresponding with the charging and discharging currents amount of measuring.
Feedback signal can be the electric current according to the size and Orientation generation in magnetic field.Feedback signal can be generated as the electric current with magnitude of current identical with the magnitude of current of charging and discharging currents.
Said method also can comprise the step that feedback signal is converted into digital signal.
In the charge and discharge process of rechargeable battery; Need not be used to cool off the extras of shunt resistor; The additional technique of coming compensation measurement according to the temperature change of shunt resistor can be reduced, deterioration can be solved according to the certainty of measurement of the charging and discharging currents amount of the temperature change of shunt resistor.Can in the charge and discharge process of rechargeable battery, further accurately control the charging and discharging currents amount.
Description of drawings
Fig. 1 illustrates the block diagram of the structure of rechargeable battery charging/discharging apparatus according to an exemplary embodiment of the present invention.
Fig. 2 illustrates the flow chart of the driving method of rechargeable battery charging/discharging apparatus according to an exemplary embodiment of the present invention.
Embodiment
Hereinafter, will exemplary embodiment of the present invention be described more fully, exemplary embodiment of the present invention shown in the drawings with reference to accompanying drawing.It should be appreciated by those skilled in the art that at all not break away under the situation of the spirit and scope of the present invention, can make amendment to the embodiment that describes with various mode.
In addition, in a plurality of exemplary embodiments, identical label is used for having the assembly of the structure same configuration that shows with first exemplary embodiment, and other different with first exemplary embodiment are configured in other exemplary embodiments and describe.
It is illustrative rather than restrictive in essence that accompanying drawing should be considered to explanation.Identical label is indicated components identical in whole specification.
In whole specification and claims, when an element was described to " combination " to another element, this element can " directly combine " to another element or pass through element " electricity combines " to another element.In addition, only if spell out to opposite, otherwise term " comprises " and will be understood that to represent to comprise listed element and do not get rid of any other element such as the variant of " comprising ".
Fig. 1 illustrates the block diagram of the charging/discharging apparatus of rechargeable battery according to an exemplary embodiment of the present invention.
With reference to Fig. 1, the rechargeable battery charging/discharging apparatus comprises power subsystem 10, discharges and recharges driver 20, control unit 30, Magnetic Sensor 40 and fixture unit 50.Discharge and recharge driver 20 and comprise change-over circuit 21 and drive circuit 22.Control unit 30 comprises memory 31, computation processor 32 and A/D converter 33.
The rechargeable battery charging/discharging apparatus is carried out the rechargeable battery charge and discharge process, and the charging that said process is carried out rechargeable battery 60 times without number drives charging and discharge driving discharge.
The universal power of the external AC voltage of supply and be dc voltage with its rectification during the charging that power subsystem 10 is received in rechargeable battery 60 drives converts dc voltage the predetermined voltage of charging needs that are used to produce rechargeable battery 60 into and this voltage is exported in discharging and recharging driver 20.In addition, power subsystem 10 receives during the discharge of rechargeable battery 60 drives from the predetermined dc voltage that discharges and recharges driver 20 producing AC voltage, thereby makes universal power regeneration (revived).For example; The AC voltage of universal power can be 220V AC, be used for discharge and recharge driver 20 produce the charging that is used for rechargeable battery 60 electric current predetermined voltage or can be 380V DC discharging and recharging the predetermined voltage that driver 20 is applied to power subsystem 10.Keep consistently outputing to the voltage that discharges and recharges driver 20 or outputing to the voltage (for example, 380V DC) of power subsystem 10, and the magnitude of current changes according to the state and the charging and discharging state of rechargeable battery from discharging and recharging driver 20 from power subsystem 10.
Discharge and recharge driver 20 and be connected to the dc voltage of power subsystem 10, and during the discharge of rechargeable battery drives, predetermined dc voltage is outputed to power subsystem 10 during the charging driving of rechargeable battery, to be scheduled to from power subsystem 10 receptions.During the charging of rechargeable battery drives; Discharge and recharge driver 20 and utilize change-over circuit 21 will convert the scheduled current (or voltage) of the charging that is used for rechargeable battery 60 into, so that scheduled current (or voltage) is transferred to rechargeable battery 60 from the dc voltage that power subsystem 10 receives.During the discharge of rechargeable battery drives; Discharging and recharging driver 20 utilizes change-over circuit 21 to make scheduled current (or voltage) discharge in the rechargeable battery 60; Be transferred to power subsystem 10 with the dc voltage that produces predetermined dc voltage (for example, 380V DC) and will be scheduled to.That is, to discharge and recharge driver 20 can be at the dc voltage of power subsystem 10 and produce the bi-directional DC-DC converter that carries out voltage transitions between the dc voltage of the charging and discharging currents that discharges and recharges that is used for rechargeable battery.Discharge and recharge driver 20 and carry out the function of bi-directional DC-DC converter with the charge function that produces the electric current that discharges and recharges (or voltage) that is used for rechargeable battery 60 and discharging function.Change-over circuit 21 produces the predetermined charging and discharging currents that discharges and recharges that is used for rechargeable battery.Be controlled at electric current (or voltage) amount of conversion in the change-over circuit 21 that discharges and recharges driver 20 by drive circuit 22.Drive circuit 22 is according to electric current (or voltage) amount that control signal is controlled at conversion the change-over circuit 21 that discharges and recharges from control unit 30 transmission.
Fixture unit 50 charges and discharge electric wire 71a and negative pole through positive pole and charges and discharge electric wire 71b and be connected to and discharge and recharge driver 20; And be attached to rechargeable battery 60; Thereby fixedly rechargeable battery 60, make to be transferred to just (+) terminal of rechargeable battery 60 reposefully and to bear (-) terminal from the electric current that discharges and recharges driver 20 outputs.Fixture unit 50 makes just (+) terminal and negative (-) termination contact area optimization with rechargeable battery 60, to carry out discharging and recharging of rechargeable battery 60 reposefully.
Magnetic Sensor 40 is measured during the charging of rechargeable battery drives from discharging and recharging driver 20 and is flow to the magnitude of current of rechargeable battery 60, and during the discharge of rechargeable battery drives, measures and flow to the magnitude of current that discharges and recharges driver 20 from rechargeable battery 60.That is, Magnetic Sensor 40 can be measured the magnitude of current and the magnitude of current during the discharge of rechargeable battery drives during the charging of rechargeable battery drives.
Hereinafter, the charging of rechargeable battery drive and discharge during driving electric current or charge and discharge electric wire 71a or negative pole at positive pole and charge and discharge the electric current that flows among the electric wire 71b and be known as charging and discharging currents, and the amount of this electric current is known as the charging and discharging currents amount.
Magnetic Sensor 40 charges and discharge electric wire 71b and separates predetermined distance with anodal electric wire 71a or the negative pole of charging and discharging; Thereby measure by charge and discharge electric wire 71a or negative pole at positive pole and charge and discharge the magnetic field that electric current mobile among the electric wire 71b produces, to measure the charging and discharging currents amount of rechargeable battery.For example, Magnetic Sensor 40 with anodal charge and discharge electric wire 71a separate predetermined distance become contactless, thereby measure by charge and discharge the magnetic field that the charging and discharging currents that flows among the electric wire 71a produces at positive pole, to measure the charging and discharging currents amount of rechargeable battery.
Magnetic Sensor 40 produces electric current according to the size and Orientation in the magnetic field of measuring, and will be as current delivery to the control unit 30 of feedback signal.The size of the electric current that produces in the Magnetic Sensor 40 changes according to the size and Orientation in the magnetic field of measuring, thus feedback signal with charge and discharge electric wire 71a or negative pole at positive pole and charge and discharge the charging and discharging currents amount that flows among the electric wire 71b and indicate relatively.
Feedback signal can be a size and charge and discharge electric wire 71a or negative pole at positive pole and charge and discharge among the electric wire 71b the big or small identical electric current of mobile electric current.That is, the size and Orientation in Magnetic Sensor 40 measurement magnetic fields produces the big or small identical electric current of big or small and charging and discharging currents, and this current delivery is arrived controller 30.Here, along with in Magnetic Sensor 40 as feedback signal electric current transmitted amount more near the actual charging and discharging currents amount that rechargeable battery 60 is discharged and recharged, can accurately carry out the charge and discharge process of rechargeable battery.
But the Hall element of Magnetic Sensor 40 applications exploiting Hall effect (magnetic field that applies with the current vertical that in semiconductor, flows produces voltage), utilize MR (magneto-resistance effect) element of magneto-resistor (influence through magnetic field increases resistance) or utilize the Josephson device (Josephson device) of superconductor.
Control unit 30 compares through using from the feedback signal of the Magnetic Sensor 40 transmission predetermined value with charging and discharging currents amount and charging and discharging currents amount.That is to say; Control unit 30 calculates from discharging and recharging that driver 20 flow to the magnitude of current of rechargeable battery 60 or flowing to poor between the predetermined value of the magnitude of current that discharges and recharges driver 20 and the predetermined magnitude of current from rechargeable battery 60; With produce control discharge and recharge driver 20 operation so that the predetermined value of charging and discharging currents amount and charging and discharging currents amount identical discharge and recharge control signal, and will discharge and recharge control signal and be transferred to drive circuit 22.
For this reason, control unit 30 comprises: A/D converter 33 will convert digital signal into from the analog feedback signal of Magnetic Sensor 40 transmission; Memory 31, the predetermined value of storage charging and discharging currents amount; Computation processor 32, the relatively digital signal of the predetermined value of charging and discharging currents amount and conversion in A/D converter 33, and generation discharges and recharges control signal and is controlled at the charging and discharging currents amount that produces in the driver 20 that discharges and recharges.The predetermined value of the charging and discharging currents amount of the rechargeable battery that kind and the characteristic that memory 31 writes with good grounds rechargeable battery confirmed or confirmed by the user.Computing controller 32 will discharge and recharge control signal and be transferred to drive circuit 22, and drive circuit 22 is controlled at charging and discharging currents (or voltage) amount of changing in the change-over circuit 21 according to discharging and recharging control signal.
Fig. 2 is the flow chart of the driving method of rechargeable battery charging/discharging apparatus according to an exemplary embodiment of the present invention.
With reference to Fig. 2; The rechargeable battery charging/discharging apparatus utilizes Magnetic Sensor 40 to measure to produce positive pole by the charging and discharging currents to rechargeable battery 60 charge or discharge and charges and discharge the magnetic field that electric wire 71a or negative pole charge and discharge electric wire 71b, to measure the charging and discharging currents amount (S110) of rechargeable battery 60.
During the charging of rechargeable battery drives; Power subsystem 100 receives the multiple power source of AC voltages and converts multiple power source the predetermined dc voltage of the required electric current of the charging that is used to produce rechargeable battery 60 into, and will be scheduled to dc voltage and be transferred to and discharge and recharge driver 20.Power subsystem 10 keeps the constant voltage of about 380V DC and changes the magnitude of current according to the charged state of rechargeable battery.Discharge and recharge driver 20 and will convert the scheduled current (or voltage) of the charging that is used for rechargeable battery 60 into, and said scheduled current (or voltage) is transferred to rechargeable battery 60 from the dc voltage of power subsystem 10 transmission.Here, positive charge charges and discharge just (+) terminal that electric wire 71a is transferred to rechargeable battery 60 through positive pole, and negative electrical charge charges and discharge negative (-) terminal that electric wire 71b is transferred to rechargeable battery 60 through negative pole.Therefore, charge and discharge electric wire 71a and negative pole at positive pole and produce magnetic field near charging and discharging electric wire 71b.To charge and discharge among the electric wire 71b current amount flowing proportional with charge and discharge electric wire 71a and negative pole at positive pole for the size in magnetic field.
During the discharge of rechargeable battery drives, discharge and recharge driver 20 and make scheduled current (or voltage) discharge in the rechargeable battery 60.Here, be transferred to and discharge and recharge driver 20 through just charging and discharging electric wire 71a, be transferred to and discharge and recharge driver 20 through the negative electric wire 71b that charges and discharge from the negative electrical charge of negative (-) terminal emission of rechargeable battery 60 from the positive charge of just (+) terminal of rechargeable battery 60 emission.Therefore, just charging and discharging electric wire 71a and negative forming magnetic field near charging and discharging electric wire 71b, yet the magnetic field that the direction in magnetic field produces during driving with charging at rechargeable battery is in the opposite direction.
Magnetic Sensor 40 is measured and being is just is being charged and discharged electric wire 71a and the negative size and Orientation that charges and discharge the magnetic field that produces among among the electric wire 71b.The direction in the magnetic field of generation is opposite each other during the charging of rechargeable battery drives and during the discharge driving of rechargeable battery, makes Magnetic Sensor 40 to distinguish the charging driving of rechargeable battery and the driving of discharging through the direction in magnetic field.In addition, Magnetic Sensor 40 can the size through magnetic field be measured just charging and discharging electric wire 71a and is charged and discharged current amount flowing among the electric wire 71b with negative.
Magnetic Sensor 40 is transferred to control unit 30 with the charging and discharging currents amount of measuring, and control unit 30 compares (S120) with charging and discharging currents amount and the predetermined value measured.Magnetic Sensor 40 produces electric current according to the size and Orientation in magnetic field, and the electric current that produces is transferred to control unit 30 as feedback signal.That is, Magnetic Sensor 40 produces and the corresponding feedback signal of measuring of charging and discharging currents amount.Magnetic Sensor 40 can produce the feedback signal with magnitude of current identical with the charging and discharging currents amount.Control unit 30 utilizes A/D converter 33 to convert feedback signal into digital signal, and the digital signal of conversion is compared with the predetermined value that is written in the charging and discharging currents in the memory 31.
Discharge and recharge driver 20 and control the charging and discharging currents amount (S130) of rechargeable battery according to the comparative result of charging and discharging currents amount of measuring and predetermined value.Control unit 30 compares the predetermined value and the digital signal of charging and discharging currents amount; And will control from the control signal that discharges and recharges of the charging and discharging currents amount that discharges and recharges driver 20 output and be transferred to and discharge and recharge driver 20, make that the difference between digital signal and the predetermined value reduces.Discharge and recharge driver 20 and control the charging and discharging currents amount according to discharging and recharging control signal.
Carry out times without number the charging and discharging currents amount utilize 40 pairs of rechargeable batteries of Magnetic Sensor measuring process S110, the charging and discharging currents amount of measuring and predetermined value comparison procedure S120 and according to the control procedure S130 of the charging and discharging currents amount of comparative result.Therefore, the charging and discharging currents amount of rechargeable battery can be retained as identical with predetermined value.
Charging/discharging apparatus according to rechargeable battery of the present invention can accurately and continuously be carried out discharging and recharging of rechargeable battery according to the predetermined value of charging and discharging currents amount.In addition; Compare with the charge and discharge process of the traditional rechargeable battery that utilizes shunt resistor; According to the charging/discharging apparatus of rechargeable battery of the present invention not the needs additional apparatus make the shunt resistor cooling, and can solve deterioration according to the certainty of measurement of the charging and discharging currents amount of variations in temperature.
Propose the accompanying drawing purpose of property presented for purpose of illustration only of detailed description and the reference hereinbefore of invention disclosed, and be not intended to definition mode or limit scope of the present invention, scope of the present invention is set forth in claims.It should be appreciated by those skilled in the art that the present invention can have various modification and be equal to embodiment.Therefore, real technical protection scope of the present invention must be confirmed based on the technical spirit of claims.
< label description >
10: power subsystem
20: discharge and recharge driver
30: control unit
40: Magnetic Sensor
50: fixture unit
60: rechargeable battery

Claims (16)

1.可充电电池的充放电设备，所述充放电设备包括：1. Charge and discharge equipment for rechargeable batteries, said charge and discharge equipment comprising: 充放电驱动器，产生用于可充电电池的充放电的充放电电流；The charging and discharging driver generates the charging and discharging current for charging and discharging the rechargeable battery; 磁传感器，测量由在可充电电池和充放电驱动器之间流动的充放电电流产生的磁场以测量充放电电流量，并产生指示测量出的充放电电流量的反馈信号；a magnetic sensor that measures a magnetic field generated by charge and discharge current flowing between the rechargeable battery and the charge and discharge driver to measure the amount of charge and discharge current, and generates a feedback signal indicative of the measured amount of charge and discharge current; 控制单元，接收反馈信号并将测量出的充放电电流量与充放电电流量的预定值进行比较来控制充放电驱动器。The control unit receives the feedback signal and compares the measured charge and discharge current with a predetermined value of the charge and discharge current to control the charge and discharge driver. 2.如权利要求1所述的充放电设备，其中，控制单元包括：2. The charging and discharging device according to claim 1, wherein the control unit comprises: A/D转换器，将反馈信号转换为数字信号；A/D converter, which converts the feedback signal into a digital signal; 存储器，存储充放电电流量的预定值；a memory for storing a preset value of charge and discharge current; 计算处理器，比较数字信号与充放电电流量的预定值以产生用于控制在充放电驱动器中产生的充放电电流量的充放电控制信号，并将充放电控制信号传输到充放电驱动器。A computing processor that compares the digital signal with a predetermined value of charge and discharge current to generate a charge and discharge control signal for controlling the charge and discharge current generated in the charge and discharge driver, and transmits the charge and discharge control signal to the charge and discharge driver. 3.如权利要求2所述的充放电设备，其中，充放电驱动器包括：3. The charging and discharging device according to claim 2, wherein the charging and discharging driver comprises: 转换电路，产生用于可充电电池的充放电的充放电电流；A conversion circuit to generate a charging and discharging current for charging and discharging the rechargeable battery; 驱动电路，根据充放电控制信号控制在转换电路中产生的电流量。The drive circuit controls the amount of current generated in the conversion circuit according to the charge and discharge control signal. 4.如权利要求3所述的充放电设备，所述充放电设备还包括：4. The charging and discharging device according to claim 3, further comprising: 电源单元，从外部接收AC电压并将所述AC电压整流为在充放电驱动器中的DC电压。A power supply unit receives an AC voltage from outside and rectifies the AC voltage into a DC voltage in the charging and discharging driver. 5.如权利要求4所述的充放电设备，其中，电源单元恒定地保持DC电压并根据可充电电池的充电状态改变供应到充放电驱动器的电流量。5. The charge and discharge device of claim 4, wherein the power supply unit constantly maintains the DC voltage and changes an amount of current supplied to the charge and discharge driver according to a state of charge of the rechargeable battery. 6.如权利要求4所述的充放电设备，其中，转换电路是在电源单元的DC电压和产生充放电电流的DC电压之间进行电压转换的双向DC-DC转换器。6. The charge and discharge device of claim 4, wherein the conversion circuit is a bidirectional DC-DC converter that performs voltage conversion between a DC voltage of the power supply unit and a DC voltage that generates a charge and discharge current. 7.如权利要求1所述的充放电设备，所述充放电设备还包括：7. The charging and discharging device according to claim 1, further comprising: 夹具单元，通过正充放电线和负充放电线连接到充放电驱动器并结合到可充电电池。The clamp unit is connected to the charging and discharging driver and combined to the rechargeable battery through the positive charging and discharging line and the negative charging and discharging line. 8.如权利要求7所述的充放电设备，其中，磁传感器与正充放电线和负充放电线中的一条分隔开预定的距离。8. The charge and discharge device of claim 7, wherein the magnetic sensor is separated from one of the positive charge and discharge line and the negative charge and discharge line by a predetermined distance. 9.如权利要求8所述的充放电设备，其中，反馈信号是根据磁场的大小和方向产生的电流。9. The charging and discharging device of claim 8, wherein the feedback signal is a current generated according to the magnitude and direction of the magnetic field. 10.如权利要求9所述的充放电设备，其中，反馈信号是大小与充放电电流的大小相同的电流。10. The charging and discharging device according to claim 9, wherein the feedback signal is a current having the same magnitude as the charging and discharging current. 11.如权利要求8所述的充放电设备，其中，磁传感器是霍尔元件、磁电阻效应元件和约瑟夫逊器件中的至少一种。11. The charging and discharging device according to claim 8, wherein the magnetic sensor is at least one of a Hall element, a magnetoresistance effect element, and a Josephson device. 12.一种用于驱动可充电电池的充放电设备的方法，该方法包括以下步骤：12. A method for driving a charging and discharging device for a rechargeable battery, the method comprising the steps of: 测量对可充电电池充电或放电的充放电电流产生的磁场来测量可充电电池的充放电电流量；Measure the magnetic field generated by the charging and discharging current of the rechargeable battery to measure the charging and discharging current of the rechargeable battery; 将测量出的充放电电流量与预定值进行比较；Comparing the measured charge and discharge current with a predetermined value; 根据测量出的充放电电流量与预定值之间的比较结果来控制可充电电池的充放电电流量。The amount of charge and discharge current of the rechargeable battery is controlled according to the comparison result between the measured charge and discharge current amount and a predetermined value. 13.如权利要求12所述的方法，所述方法还包括产生与测量出的充放电电流量对应的反馈信号的步骤。13. The method of claim 12, further comprising the step of generating a feedback signal corresponding to the measured amount of charging and discharging current. 14.如权利要求13所述的方法，其中，反馈信号是根据磁场的大小和方向而产生的电流。14. The method of claim 13, wherein the feedback signal is a current generated according to the magnitude and direction of the magnetic field. 15.如权利要求14所述的方法，其中，反馈信号被产生为具有与充放电电流的电流量相同的电流量的电流。15. The method of claim 14, wherein the feedback signal is generated as a current having the same current amount as that of the charging and discharging current. 16.如权利要求14所述的方法，所述方法还包括将反馈信号转换为数字信号的步骤。16. The method of claim 14, further comprising the step of converting the feedback signal to a digital signal.
CN2010105522387A 2010-08-30 2010-11-17 Chargeable battery charging/discharging device and driving method thereof Pending CN102386638A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376413A (en) * 2012-04-20 2013-10-30 凹凸电子（武汉）有限公司 Test system of battery and method for controlling test system of battery
CN104297696A (en) * 2014-11-13 2015-01-21 成都市幻多奇软件有限公司 Charge-discharge integrated memorizing accumulator detector for computer
US20230152376A1 (en) * 2020-04-08 2023-05-18 Gs Yuasa International Ltd. Method for diagnosing failure of current breaking device and energy storage apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102545270B1 (en) * 2021-03-25 2023-06-20 비나텍주식회사 Pressurizing device for charging/discharging pouch-type battery cells with monitoring system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638386A (en) * 1992-07-17 1994-02-10 Honda Motor Co Ltd System for monitoring charging/discharging of on-vehicle battery
US20060197382A1 (en) * 2005-03-04 2006-09-07 Industrial Technology Research Institute Hybrid power supply and power management method thereof
JP2009240116A (en) * 2008-03-28 2009-10-15 Suzuki Motor Corp Controller for vehicular generator
CN201360163Y (en) * 2009-02-06 2009-12-09 中兴通讯股份有限公司 Assembled battery charging controller
CN101647176A (en) * 2007-03-26 2010-02-10 吉列公司 Lithium iron phosphate ultra fast battery charger
CN201440614U (en) * 2009-06-26 2010-04-21 比亚迪股份有限公司 Charge control circuit
JP2010154618A (en) * 2008-12-24 2010-07-08 Tdk Corp Bidirectional converter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638386A (en) * 1992-07-17 1994-02-10 Honda Motor Co Ltd System for monitoring charging/discharging of on-vehicle battery
US20060197382A1 (en) * 2005-03-04 2006-09-07 Industrial Technology Research Institute Hybrid power supply and power management method thereof
CN101647176A (en) * 2007-03-26 2010-02-10 吉列公司 Lithium iron phosphate ultra fast battery charger
JP2009240116A (en) * 2008-03-28 2009-10-15 Suzuki Motor Corp Controller for vehicular generator
JP2010154618A (en) * 2008-12-24 2010-07-08 Tdk Corp Bidirectional converter
CN201360163Y (en) * 2009-02-06 2009-12-09 中兴通讯股份有限公司 Assembled battery charging controller
CN201440614U (en) * 2009-06-26 2010-04-21 比亚迪股份有限公司 Charge control circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376413A (en) * 2012-04-20 2013-10-30 凹凸电子（武汉）有限公司 Test system of battery and method for controlling test system of battery
CN104297696A (en) * 2014-11-13 2015-01-21 成都市幻多奇软件有限公司 Charge-discharge integrated memorizing accumulator detector for computer
US20230152376A1 (en) * 2020-04-08 2023-05-18 Gs Yuasa International Ltd. Method for diagnosing failure of current breaking device and energy storage apparatus

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